Duck bill hat



FIG. 1 is a top right side view of the duck bill hat;

FIG. 2 is a right side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a top perspective view thereof; and,

FIG. 6 is a top perspective view thereof. 

The ornamental design for a duck bill hat, as shown. 